for Monetary Policy at the Bank of England, replaced Nickell as the economy expert on the BRC. And in September 2018, former OBR Chief of Staff Andy King replaced Parker as the fiscal expert on the committee. Sir Christopher Kelly replaced Kate Barker as Non-executive member of the OBR and Oversight Board chair in June 2017. The following year in June 2018, Bronwyn Curtis OBE joined as a Non-executive member and Audit sub-Committee chair, replacing Lord Terry Burns. In October 2020, Robert Chote was succeeded by Richard Hughes. Organisational structure Budget Responsibility Committee The three members of the Budget Responsibility Committee (BRC) who are appointed by the Chancellor of the Exchequer following an appointment hearing at the Treasury Select Committee, lead the OBR. They have executive responsibility for carrying out the core functions of the OBR, including responsibility for the judgements reached in its forecasts. They are: Richard Hughes (Chairman) Prof. David Miles CBE Andy King Oversight Board The OBR's Oversight Board ensures that effective arrangements are in place to provide assurance on risk management, governance and internal control. It consists of the three members of the BRC plus two non-executive members, Bronwyn Curtis OBE and Sir Christopher Kelly. Advisory Panel The OBR's Advisory Panel of economic and fiscal experts meets regularly to advise the OBR on its work programme and analytical methods. Currently members come from the Bank of England, the Institute for Fiscal Studies, academia, and other bodies. Permanent staff of the OBR The BRC are supported in their work by the OBR’s permanent staff of 31 civil servants, led by Steve Farrington. The staff work in teams covering: Strategy, operations and communications Economic analysis Receipts analysis Expenditure analysis Policy costing and devolution Fiscal risks and sustainability Legislation and related material The OBR's formal rights and responsibilities are outlined in four documents: The Budget Responsibility and National Audit Act 2011 The Charter for Budget Responsibility The OBR/HM Treasury Framework document A Memorandum of Understanding between the OBR and government departments with which it interacts most frequently and closely: HM Treasury, HM Revenue and Customs and the Department for Work and Pensions. Primary legislation The Budget Responsibility and National Audit Act sets out the overarching duty of the OBR to examine and report on the sustainability of the public finances. It also gives complete discretion to the OBR in the performance of its duties, as long as those duties